Merge pull request #353 in FS/freeswitch from mod_conference_refactor to master

* commit '59d1bdae1ed3d4f8564f02cc4989bedccbd98b5c':
  FS-7845 whitespace and indention
  FS-7845 File rename to remove mod_* prefix to local module C files. Change function name prefixes from shorthand 'conf' to longer form 'conference'. Also fixes the channel variable names which had been caught in an over zealous perl -pi -e command...
  FS-7845 Rename functions so that they relate to the file that they are located in.
  FS-7845 Refactor of mod_conference to improve compilation speed, and logical organization.